I'm very happy with mine. Bought from Amazon.com and it came with a free gram scale....pretty useless for big subs since you need about 1KG, but I use multiple 5oz fishing weights for added mass so I weigh all separately and add the values.
i have the wt3 and the old peak instruments wt. the wt3 is fast and easy,with the new beta 2.0 software it works killer on windows 7. my old peak wt works well too but you can do some more things with it over the wt3, but it take about 5min to get t/s with the old one. you cant go wrong with any of them, they are a great tool to have for sure.
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